Hello there. I noticed my Pole Man is in the list.(I ditched the symbols a while ago, FYI.)
Uh, yeah... Just letting you know, that design is obsolete. He's been re-designed a couple times; the latest as of this post is right up in my sprite thread in INC. Thanks in advance.

Alright, I'm here to drop off the Robot Masters of mine that are still missing, along with some other miscellanea only I could report. Note that a Robot Master marked in italics is already on the list, but needs aspects of their documentation changed or updated.

Mega Man Virulence

The set of 8 Robot Masters who now, after peer review and revision, make up the setlist for Mega Man Virulence, a fangame concept I want to explore one day. We'll see.

I'm not really sure what to call these guys. I built them for Virulence, because at one point I was mad enough to attempt planning out an entire trilogy of fangames. Some I definitely like more than others, some definitely have distinctly more chance of making it to the final game than others. But that implies I'd actually get to make said sequels.

Really small cast of four RMs I whipped together as part of a crossover fanfiction, their name coming from them being part of Wily's gambit to lure Mega Man into an interdimensional vortex. Not very thoroughly fleshed out; most of the reason they existed was to give Mega Man some starting weapons in the story. All four of them are presently labeled as Stray.

Sleet Man
Blast Man
Boxing Man
Stalagmite Man

My actually stray RMs

In truth, this chart has done a great job of keeping track of my miscellaneous RMs—it has RMs on it that I've managed to forget I made. There are only a few missing fellows, and a couple that need to be updated.

Asphalt Man [Presently labeled as being mine when the concept was outright given to Jace]Dimension Man [Presently labeled as being solely mine, when he was in fact a joint effort between myself and ProtoMan01]
Shard Man
Fugue
Carol
Chiptune

Mega Man Heroes

These fellows were made as part of a Mega Man role-play that took place on the Mighty Number Nine forums. Due to the nature of how the story unfolded, the characters were introduced by a few different people, so the creator of each individual character is listed in parentheses beside their name. They're also divided into two equal subgroups, if this would be relevant information to the tier/game names, so I've listed them underlined below.

Submitted on behalf of my good buddy, Varogon Razorwing, who made these Robot Masters. He made them as part of a fangame concept when I was coming up with Virulence, and while I believe he has no plans to move forward with any of them, I think he'd want them to be mentioned here.

Gathered some OCs from /mmg/ and our booru. Tried to find creators for what I could, didn't bother checking for repeats in the spreadsheet because fuuuck that I'm tired already.
Will update this if I ever find who made Vintage/Bolt/Radar or if I have something wrong.

At the moment, we do not track Mavericks. There's a lot less of them out there, and with the two word naming scheme (tracking the first word alone is not fair because Storm Eagle and Storm Owl) there's far more variety available, making significant repeats very unlikely (though not impossible).

Since I'm completely re-working my Robot Master List by re-vamping some of my old RMs and even weeding out those who don't fit the bill ("Otaku Man"? SERIOUSLY?), I just thought I'd toss in the ones I've done before (some of 'em may share the same name as the other RMs on here), if that's fine with you folks.

I see my 9-boss is there. Yes, I'm teamxkproductions.
And I have been working on a Megaman-clone called Cream's Adventure.
Due to me writing the story, it really didn't really fit in with the MM universe, so I ditched the RM naming convention.

There was that one romhack, Break Man 3, that I played one time that technically had original robot masters.
They were -first man
-Hydro Man
-Killer Man
-Steel Man
-Blade Man
-Wizard Man
-Mirror Man
and -Cherry Man.
There was also Satan Man but he was literally exactly like Proto Man in every way so I don't know if he's worthy to be included. They game says something like "done by pixelboy" when starting so I'm pretty sure it's safe to assume he can be credited.

There was also those two robot masters from MsPaint Masterpieces, Spike Man and Reset Man, by DisgruntledFerret…

Sugar Man from megamanspritecomic by the dude who made megamanspritecomic… I think his name was Brotoad or Splendidland.

Dumb stuff I did, it's about time this was updated, however if this is considered necroposting I'll delete it for the time being.

Phlog Man: Robot Master with limbs detached, the central body includes a Changekey-like head and fireballs as hands. Meant to be a robot to control fire and manipulate it, and was used for several jobs such as cooking, burning trash, and helping out firefighters.

Boomerang Man: Bounty Hunting Robot Master with a detachable head shaped like a, well what do you think. Originally built for combat, now serves as a bounty hunter for his creator. His body is much more bulky than he is, and has been changed several times (in fact it's likely to change as I speak).

Both of these are stray robot masters, not affiliated with any fangames, comics, or rom hacks, yet.

(Boomerang Man is currently a wip sprite as of now so here's Phlog Man for the time being.)

Well know that I finally announced my fangame I guess I can ask you to add the designs that I have made for it to this list. It's all the ones that are shown on the second screenshot on this thread: http://sprites-inc.co.uk/showthread.php?tid=2296